SDR CA100622009

Service difficulty report · Autofeather Sys

Difficulty date: June 10, 2010
Submitted: January 4, 2011
Operation: Air carrier
Engine: Pwa PW127
System (JASC): 6123 · Propeller Feathering/Reversing
Part: Autofeather Sys
Condition: Malfunctioned
Stage of operation: CR
How discovered: O
Nature of condition: J
Precautionary procedure: E, A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

LOSS OF TORQUE/IFSD DURING CRUISE AT FL150, A LOSS OF POWER OCCURRED AND THE PILOT SHUT THE ENGINE DOWN. AFTER DESCENDING TO FL100, THE PILOT RE-STARTED THE ENGINE NORMALLY BUT WHEN AUTOMATIC WAS SELECTED, THE TORQUE READ ZERO AGAIN. THE ENGINE WAS SHUTDOWN AND AN UNEVENTFUL SINGLE ENGINE LANDING FOLLOWED. TROUBLESHOOTING IS ON-GOING AND FOCUSING ON THE AUTOFEATHER UNIT.